Improvement in magnetic holders for feeding screw and other blanks



s. n. gurus?) I v uennnc HOLDERS FOR FEEDING scnzwwn Wm Buns.

Patented Jan. 30,1877.-

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UNlI'IED STATES PATENT Garter-.19.

I EDWARD E. QUlMBSQOF ORANGE, NEW JERSEY, ASSIGNOR TO AMERICAN SCREWCOMPANY, or PROVIDENCE, RHODE ISLAND.

" I IiPROVEMENT IN MAGNETIC HOLDERS FOR FEEDING SCREW AND OTHER ELAN-KS.T

. v I I Specification forming part of Letters Patent No. 186,755, datedJanuary 30,1877,; application filed October 20, 1876.

Tooll whom it may concern.- surfaces or protuberances, the poles of theBe it known that 1, EDWARD E. QUIMBY, magnet are recessed to conform tothe shape of Orange, 'New Jersey, have invented an lmof such curves orprotuberances. .If the parts provement in Devices for Feeding Iron or ofthe object to be seized present cavities, the

Steel Blanks to Automatic Machines, of which poles of the magnet arerespectively formed "the following is a specification: of suitable shapeto enter such cavities. My improvement relates to the use of mag- Forthe purpose of increasing the range of nets for holding iron orsteelobjects in preusefulness of my invention, instead of recessscribedposition while such objects are being ing or pointing the poles of themagnet itself,

. transferred from one part of a machine and I provide the magnet with adivided armature delivered to another part of the machine. composed oftwo pieces of soft iron, which My invention consists in forming thepoles are respectively secured to the opposite poles of the magnet intoshapes corresponding with of the magnet, or are so arranged as to be inthe shape of the object which is to be carried magnetic contact with theopposite poles, and

at the points-where it is tobe held by magwhich are of such shape as maybe required netlc adhesion; and my invention also iuby the circumstancesof the case in which I cludes a divided armature, composed of two theyare to be used. These pieces of soft pieces of soft'iron, eachpresenting a flat suriron, each of which is at one end in contact 1.face at one end for contact with the flat surwith a pole of the magnet,form a part of a "face of the magnet at its poles, while the magneticcircuit which is completed when the other ends of the soft-iron piecesare formed opposite ends of the pieces of soft iron are into therequired shapes to enable them to enbrought into contact with the objectto be gage particular parts of the object 'whichis carried.

" to becarried.

u I, The divided armature has twoaadvan'tagesz 1.1 have appliedmyiuvention to a machine First, the two pieces of soft iron composingfor'the manufacture of wood-screws, which is it may be made apart ofthepermanent strucfully described in the application which I-have I tureof .the machine in which the carrier is to prepared preparatory: toobtaining Letters be used, and be of any requirecf isize and Patent ofthe United States therefor. In shape; as, for example, the two halves ofthe that application, my magnetic feeding device armature may beprolonged into thtga tems is described and claimed in combination withor plates, capable of entering a narrow aperdevices for delivering smallobjects of iron or ture in the machine, or a narrow space besteel to themagnetic carrier, and also in comtween two adjacent parts of themachinebination with devices forreceiving such obthat'is, a space toosmall to allow the passage jects fromthe magnetic'carrier. of the magnetitself. The second advantage My present application relates to theconis, that the magnet maybe detached from the 'structioii'of themagnetic carrier itself, witharmature-pieces withoutaltering theposition out reference either, to devices which deliver or'adjustment ofthe armature-pieces in relaobjects to the magnet or to devices whichretion to each other or tothe other parts of the ceive objects from themagnet. machine in conjunction with which the carrier In my-magneticcarrier, the object carried operates.

constitutes either the armature which con- When the energy of themagnetbecomes nects the poles of the magnet, or the link enfeebled itmay thus be conveniently rewhich completes the magnetic circuit, andmoved, and. a stronger magn'etsubstituted in my invention consists infitting the poles of 'a itsplace, 'while the enfeebled magnet is beingmagnet to grasp or adhere to particular parts remagnetized. Of course,if an electromagof an object, for the purpose of holding the net is usedthere will be no necessity for reobject in a prescribed position.movingthe magnet for the purpose indicated, If the parts of the objectto which-it is debut it will be found much more convenient to sired themagnetshall adhere present curved use fixed magnets, and I havetherefore esi i- 3s arri'er with referenceto the a roiinii ed'obj ect as, for example, a portion of the head of around headed screWhianir. Fig.3 is apersp'ective view of a divided armature, terminating in' thinplates slightly curved at their outer extremities, and grooved for thepurpose of seizing a cylindrical. object--as, the sash wire used inmaking pies. Fig. 4 is a similar perspective, showing a divided armatureterminating in two'stems, pointed at theirends to fit them to entercavities in the surface of the object which is to be carried.

In the drawings, an ordinary horseshoemagnet, A, is shown in connectionwith. divided arinatures B B. In Figs. 1 and 2, which are perspectiveviews from'opposite sides of the same stitching-ate armatures arecomposed of the anglepieces B B, which are in magnetic contact with theends and a portion oi: the side's'of the, two legs of the magnet.Thhs'ii 'aligle-picces are secured to a plat'egeg of, it'dh'd; or scaleether iio'n hiagnetic stillstaii'ce, which separates the edges of the anglepieces from each other, and maintains theni in proper position withrelation to each other, and with relatilln toth'at part'of the legs 0 cof the assent with which the anglepieces are in magnetic contact. Thewooden crosspiece 0 secured by the screws 0 c to the plate if), andclamps the legs of the magnet against the inner sides of theangle-pieces. I The plate 0, which may be made of brass,

if necessary, is to be secured-to the part oi' the machine which givesmotion to tlie carrier.

I Wheii it is desired to reinove the magnet, the screws o e are takenout, which permits the detachment of the clamp or cross-piece c. Themagnet may then be slid away from the angle-pieces, and another magnetsubstituted inits place. i

It will thus be seen that the armature, considered as a structure byitself, consists oi two pieces of soft iron of the desired shape,secured in proper position to a non-magnetic substance, for the purposeof permitting the convenient application of scribed.

The cross-piece or clamp, by which the magnet is mechanically held incontact with the armature, may be arranged in the position shown, or inany other convenient position, according to circumstances.

In the structure shown in Figs. 1 and 2 the the magnet, as derecesses 11d are termed on the outer sides of the angle-pieces, and, takentogether, present a shallow concavity, suitable for the reception ture';er, in o her words;

' ture.

of a slightly-romided object, partaking of the shape of an obi-atespheroid.

Fig. 3 represents a structure in angle-plates of the divided are videilwith l n slende which the corresponding cavities in the object to hecarried.

It will, of course, be understood that in applying my invention to anymachine the length, breadth, and shape of the two angle, pieces, stems,or blades, will be varied accord ing to the exigencies of the occasion,having regard to the size and shape of the space which the machineafi'ords, to the size and shape of the objects to he carried, to the p osuch objects are required to sition in which 1 u M be held andpresented; and to the nature of the iniition which the carrier isrequired to make.

In all cases the object carried magnet or the two parts 0' dividedarena:

circuit; andiii all cases the object carried is sensibl el magnetic antnet provided at its poles with two pieces of soft iron of prescribeddimensions and shapes,

such pieces of soft iron resenting, in suite his proiriniity, twosurfaces or points conform leg to particular parts oi an object whichthe carrier is required to hold in prescribes position by magneticadhesion.

2. A divided armature, composed of two pieces of soft iron ofPI'BSGIlbBdYGlIDGUSlODS.

and shape, secured to anon-magnetic material, in such relation as topresent two surfaces for adhesion to the opposite poles of amagnet, andtwo surfaces or points corre; spondingin position and shape to theposition and shape of two parts of an object intended to beheld inprescribed position by magnetic force.

3.The combination of a magnet, and a di-.-

vided armature, with a detachable clamp, for the purpose of mechanicallymaintaining the contact of the poies of the magnet with the soft-ironpieces composing the divided arma- EDW. E. QUIMBY. Witnesses:

Enwn. PAYSON, GEO. W. MIATT.

:atnre are pro-v constitutes the link which connectsth e two poles erthe the magnetic 1 the :d'e'siriid the" o'ii to it of two of thearmature, which correspond in shape to the

